diff --git a/tests/test_engine.py b/tests/test_engine.py
index d5aa5d3..c5dedea 100644
--- a/tests/test_engine.py
+++ b/tests/test_engine.py
@@ -7,11 +7,7 @@ airtime duty-cycle, TX mode (forward/monitor/no_tx), and config reloading.
 """
 import asyncio
 import base64
-import copy
-import math
 import time
-from collections import OrderedDict
-from typing import Optional
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
diff --git a/tests/test_flood_loop_dedup.py b/tests/test_flood_loop_dedup.py
index 76c2b2a..dfc6b0d 100644
--- a/tests/test_flood_loop_dedup.py
+++ b/tests/test_flood_loop_dedup.py
@@ -13,11 +13,9 @@ objects to verify:
 """
 from unittest.mock import MagicMock, patch
 
-import pytest
 
 from pymc_core.protocol import Packet, PathUtils
 from pymc_core.protocol.constants import (
-    MAX_PATH_SIZE,
     ROUTE_TYPE_FLOOD,
     ROUTE_TYPE_TRANSPORT_FLOOD,
 )
diff --git a/tests/test_handler_helpers_mesh_cli.py b/tests/test_handler_helpers_mesh_cli.py
index 5fcd27c..2e82d9d 100644
--- a/tests/test_handler_helpers_mesh_cli.py
+++ b/tests/test_handler_helpers_mesh_cli.py
@@ -1,7 +1,6 @@
 from types import SimpleNamespace
 from unittest.mock import MagicMock, patch
 
-import pytest
 
 from repeater.handler_helpers.mesh_cli import MeshCLI
 
diff --git a/tests/test_handler_helpers_room_server.py b/tests/test_handler_helpers_room_server.py
index 36ff146..1332f0c 100644
--- a/tests/test_handler_helpers_room_server.py
+++ b/tests/test_handler_helpers_room_server.py
@@ -1,4 +1,3 @@
-import asyncio
 import time
 from types import SimpleNamespace
 from unittest.mock import AsyncMock, MagicMock, patch
diff --git a/tests/test_http_server_unit.py b/tests/test_http_server_unit.py
index 757e54a..6f4d788 100644
--- a/tests/test_http_server_unit.py
+++ b/tests/test_http_server_unit.py
@@ -2,7 +2,6 @@ import io
 import logging
 from pathlib import Path
 from types import SimpleNamespace
-from unittest.mock import MagicMock
 
 import cherrypy
 import pytest
diff --git a/tests/test_identity_manager_and_repeater_cli.py b/tests/test_identity_manager_and_repeater_cli.py
index ce149d3..20df1b5 100644
--- a/tests/test_identity_manager_and_repeater_cli.py
+++ b/tests/test_identity_manager_and_repeater_cli.py
@@ -1,7 +1,5 @@
-from types import SimpleNamespace
 from unittest.mock import MagicMock, patch
 
-import pytest
 
 from repeater.handler_helpers.repeater_cli import MeshCLI, RepeaterCLI
 from repeater.identity_manager import IdentityManager
diff --git a/tests/test_keygen_local_cli.py b/tests/test_keygen_local_cli.py
index 7ecc1f6..639c74e 100644
--- a/tests/test_keygen_local_cli.py
+++ b/tests/test_keygen_local_cli.py
@@ -1,7 +1,6 @@
 import hashlib
 import json
-from pathlib import Path
-from unittest.mock import MagicMock, patch
+from unittest.mock import patch
 
 import pytest
 
diff --git a/tests/test_main_py_coverage.py b/tests/test_main_py_coverage.py
index 199caeb..e7e832a 100644
--- a/tests/test_main_py_coverage.py
+++ b/tests/test_main_py_coverage.py
@@ -1,4 +1,3 @@
-import asyncio
 from types import SimpleNamespace
 from unittest.mock import AsyncMock, MagicMock, patch
 
diff --git a/tests/test_mqtt_publish_integration.py b/tests/test_mqtt_publish_integration.py
index d22ccd8..9099922 100644
--- a/tests/test_mqtt_publish_integration.py
+++ b/tests/test_mqtt_publish_integration.py
@@ -11,7 +11,6 @@ to end. paho-mqtt's network layer is mocked so no real broker is required.
 """
 
 import json
-import math
 from unittest.mock import MagicMock
 
 from repeater.airtime import AirtimeManager
diff --git a/tests/test_path_hash_mode_advert.py b/tests/test_path_hash_mode_advert.py
index b8aeb17..fc724a5 100644
--- a/tests/test_path_hash_mode_advert.py
+++ b/tests/test_path_hash_mode_advert.py
@@ -5,7 +5,6 @@ When mesh.path_hash_mode is 1 or 2, flood 0-hop packets (e.g. adverts) sent via
 dispatcher.send_packet() must have path_len encoding set so get_path_hash_size()
 returns 2 or 3. The dispatcher applies this in send_packet() before transmit.
 """
-from unittest.mock import AsyncMock, MagicMock
 
 import pytest
 
diff --git a/tests/test_path_hash_protocol.py b/tests/test_path_hash_protocol.py
index 2e7ead3..2f93778 100644
--- a/tests/test_path_hash_protocol.py
+++ b/tests/test_path_hash_protocol.py
@@ -12,7 +12,6 @@ rather than mocking the protocol layer. Covers:
   - Max-hop boundary enforcement per hash size
 """
 import struct
-from collections import OrderedDict
 from unittest.mock import MagicMock, patch
 
 import pytest
@@ -23,7 +22,6 @@ from pymc_core.protocol.constants import (
     PATH_HASH_COUNT_MASK,
     PATH_HASH_SIZE_SHIFT,
     PAYLOAD_TYPE_TRACE,
-    PH_TYPE_SHIFT,
     ROUTE_TYPE_DIRECT,
     ROUTE_TYPE_FLOOD,
 )
diff --git a/tests/test_update_endpoints_unit.py b/tests/test_update_endpoints_unit.py
index be222b9..168e8e8 100644
--- a/tests/test_update_endpoints_unit.py
+++ b/tests/test_update_endpoints_unit.py
@@ -1,6 +1,5 @@
 from datetime import datetime, timedelta, timezone
 from types import SimpleNamespace
-from unittest.mock import patch
 
 import cherrypy
 import pytest